Suppose that 60% of all adults regularly consume coffee, 40% regularly consume carbonated soda, and 75% regularly consume at least one of these two products. (a) What is the probability that a randomly selected adult regularly consumes both coffee and soda? (b) What is the probability that a randomly selected adult doesn't regularly consume at least one of these two products?
Suppose that 60% of all adults regularly consume coffee, 40% regularly consume carbonated soda, and 75% regularly consume at least one of these two products. (a) What is the probability that a randomly selected adult regularly consumes both coffee and soda? (b) What is the probability that a randomly selected adult doesn't regularly consume at least one of these two products?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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If and denotes two events, the probability denotes the probability of happening of either of the events. It can be given as .
where,
- and be the individual probabilities of happening of event and event , respectively.
- be the probabilities of happening of both the events and , at the same time.
If denotes an event, then denotes the compliment of event . The event denotes the not happening of event . Therefore, it can be said that .
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